Subcritical Water Extraction and Direct Formation of Microparticulate Polysaccharides Powders from Ganoderma Lucidum

2014 ◽  
Vol 5 (1) ◽  
pp. 40 ◽  
Author(s):  
Yui Matsunaga ◽  
Siti Machmudah ◽  
Wahyudiono . ◽  
Hideki Kanda ◽  
Mitsuru Sasaki ◽  
...  
Keyword(s):  
Ganoderma Lucidum ◽  
Subcritical Water ◽  
Water Extraction ◽  
Subcritical Water Extraction ◽  
Direct Formation

scholarly journals Yield and Extraction Rate Analysis of Phytochemical Compounds from Eucheuma cottonii, Ganoderma lucidum, and Gracilaria sp. using Subcritical Water Extraction

2021 ◽  
Vol 21 (1) ◽  
pp. 27
Author(s):  
Fesa Putra Kristanto ◽  
Siti Machmudah ◽  
Sugeng Winardi ◽  
Wahyudiono Wahyudiono ◽  
Motonobu Goto
Keyword(s):  
Ganoderma Lucidum ◽  
Subcritical Water ◽  
Extraction Process ◽  
Extraction Rate ◽  
Water Extraction ◽  
Kinetics Model ◽  
Optimum Temperature ◽  
Subcritical Water Extraction ◽  
Phytochemical Compounds ◽  
Eucheuma Cottonii

Eucheuma cottonii (E. cottonii), Ganoderma lucidum (G. lucidum), and Gracilaria sp. are plants that contain high phytochemicals, such as flavonoids, polyphenols, saponins, and tannins. In this work, the phytochemicals were obtained using the subcritical water extraction (SWE) process. The SWE method uses water as a solvent in subcritical conditions. Therefore, the SWE process is an environmentally friendly process for extraction. In order to run the SWE process optimally, measurement of the extraction rate of SWE is needed. Calculation of the extraction rate of SWE process used first and second-order models according to Lagergren equation. SWE process was started by setting temperatures from 140 to 180oC at a pressure of 7 MPa and solvent flow rate of 1 ml/min. Before starting the extraction, the raw material was loaded into the extractor. The raw materials used were E. cottonii, G. lucidum, and Gracilaria sp. The extraction process was carried out for 3 hours, and the product was collected every 30 minutes. The collected product was put into a sample bottle and dried using a freeze dryer. After that, the products obtained were balanced by an analytical scale. Based on the result, the optimum temperature for the SWE process was 180oC for E. cottonii and G. lucidum and 160oC for Gracilaria sp. The yields of the SWE process under the optimum temperature were 85.37%, 58.42%, and 75.73% for E. cottonii, G. lucidum, and Gracilaria sp, respectively. The extract contained phytochemical compounds detected by high-performance liquid chromatography analysis. The kinetics model of extraction rate for all variables exhibited a second-order kinetics model that indicated that the extraction process was influenced by more than one factor.

SUBCRITICAL WATER EXTRACTION OF ESSENTIAL OILS FROMZATARIA MULTIFLORABOISS

2009 ◽  
Vol 32 (6) ◽  
pp. 804-816 ◽  
Author(s):  
M. KHAJENOORI ◽  
A. HAGHIGHI ASL ◽  
F. HORMOZI ◽  
M.H. EIKANI ◽  
H. NOORI BIDGOLI
Keyword(s):  
Essential Oils ◽  
Subcritical Water ◽  
Water Extraction ◽  
Subcritical Water Extraction

Optimization of subcritical water extraction of phenolic antioxidants from pomegranate (Punica granatum L.) peel by response surface methodology

2017 ◽  
Vol 9 (32) ◽  
pp. 4647-4656 ◽  
Author(s):  
Linlin Yan ◽  
Yungang Cao ◽  
Guangyao Zheng
Keyword(s):  
Response Surface Methodology ◽  
Subcritical Water ◽  
Punica Granatum ◽  
Water Extraction ◽  
Phenolic Antioxidants ◽  
Subcritical Water Extraction ◽  
Extraction Technology ◽  
Pomegranate Peel ◽  
Efficient Extraction ◽  
Punica Granatum L

Subcritical water extraction (SWE), a ‘green’ and efficient extraction technology, was applied to extract phenolic antioxidants from pomegranate peel in this study.

scholarly journals Structural Changes in Milled Wood Lignin (MWL) of Chinese Quince (Chaenomeles sinensis) Fruit Subjected to Subcritical Water Treatment

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 398
Author(s):  
Wen-Yue Wang ◽  
Zhao Qin ◽  
Hua-Min Liu ◽  
Xue-De Wang ◽  
Jing-Hao Gao ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Water Treatment ◽  
Quantum Coherence ◽  
Structural Changes ◽  
31P Nmr ◽  
Subcritical Water ◽  
Water Extraction ◽  
Subcritical Water Extraction ◽  
Milled Wood Lignin ◽  
Chinese Quince

Subcritical water treatment has received considerable attention due to its cost effectiveness and environmentally friendly properties. In this investigation, Chinese quince fruits were submitted to subcritical water treatment (130, 150, and 170 °C), and the influence of treatments on the structure of milled wood lignin (MWL) was evaluated. Structural properties of these lignin samples (UL, L130, L150, and L170) were investigated by high-performance anion exchange chromatography (HPAEC), FT-IR, gel permeation chromatography (GPC), TGA, pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), 2D-Heteronculear Single Quantum Coherence (HSQC) -NMR, and 31P-NMR. The carbohydrate analysis showed that xylose in the samples increased significantly with higher temperature, and according to molecular weight and thermal analysis, the MWLs of the pretreated residues have higher thermal stability with increased molecular weight. The spectra of 2D-NMR and 31P-NMR demonstrated that the chemical linkages in the MWLs were mainly β-O-4′ ether bonds, β-5′ and β-β′, and the units were principally G- S- H- type with small amounts of ferulic acids; these results are consistent with the results of Py-GC/MS analysis. It is believed that understanding the structural changes in MWL caused by subcritical water treatment will contribute to understanding the mechanism of subcritical water extraction, which in turn will provide a theoretical basis for developing the technology of subcritical water extraction.

Subcritical water extraction of fucoidan from Saccharina japonica: optimization, characterization and biological studies

2017 ◽  
Vol 30 (1) ◽  
pp. 579-590 ◽  
Author(s):  
Periaswamy Sivagnanam Saravana ◽  
Adane Tilahun ◽  
Collin Gerenew ◽  
Vo Dinh Tri ◽  
Nan Hee Kim ◽  
...  
Keyword(s):  
Subcritical Water ◽  
Saccharina Japonica ◽  
Water Extraction ◽  
Subcritical Water Extraction ◽  
Biological Studies

High performance curcumin subcritical water extraction from turmeric (Curcuma longa L.)

2016 ◽  
Vol 1022 ◽  
pp. 191-198 ◽  
Author(s):  
Mohammad Valizadeh Kiamahalleh ◽  
Ghasem Najafpour-Darzi ◽  
Mostafa Rahimnejad ◽  
Ali Akbar Moghadamnia ◽  
Meisam Valizadeh Kiamahalleh
Keyword(s):  
High Performance ◽  
Subcritical Water ◽  
Curcuma Longa ◽  
Water Extraction ◽  
Subcritical Water Extraction

Influence of temperature on the subcritical water extraction of Actinidia arguta leaves: A screening of pro-healthy compounds

2022 ◽  
Vol 25 ◽  
pp. 100593
Author(s):  
Ana Margarida Silva ◽  
Ana Sofia Luís ◽  
Manuela M. Moreira ◽  
Ricardo Ferraz ◽  
Tanja Brezo-Borjan ◽  
...  
Keyword(s):  
Subcritical Water ◽  
Water Extraction ◽  
Subcritical Water Extraction ◽  
Influence Of Temperature ◽  
Actinidia Arguta ◽  
Influence Of Temperature On

scholarly journals Tuning the molar mass and substitution pattern of complex xylans from corn fibre using subcritical water extraction

2020 ◽  
Vol 22 (23) ◽  
pp. 8337-8352
Author(s):  
Reskandi C. Rudjito ◽  
Amparo Jiménez-Quero ◽  
Mahmoud Hamzaoui ◽  
Stéphane Kohnen ◽  
Francisco Vilaplana
Keyword(s):  
Molar Mass ◽  
Subcritical Water ◽  
Water Extraction ◽  
Subcritical Water Extraction ◽  
Substitution Pattern ◽  
Corn Fibre

Subcritical water tunes the molar mass and substitution pattern of complex xylans from corn fibre, preserving the bound ferulic monomers and dimers.

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